ATI RN
Nutrition and Fluid Balance Chapter 14 Questions
Question 1 of 5
Which is the most appropriate indication for parenteral nutrition (PN)?
Correct Answer: C
Rationale: Parenteral nutrition (PN) is indicated when the gastrointestinal tract cannot be used effectively, such as in ileus, which is a prolonged cessation of bowel motility. Severe anorexia, lack of bowel sounds, and high GRV may not necessarily preclude enteral nutrition attempts.
Question 2 of 5
Cell volume (and therefore cell function) in most cells is dependent upon careful regulation of
Correct Answer: C
Rationale: Osmolarity of extracellular fluid determines water movement into or out of cells via osmosis, affecting cell volume and function.
Question 3 of 5
Kidneys regulate
Correct Answer: A
Rationale: Kidneys primarily regulate water loss through urine concentration, not water gain, which depends on intake.
Question 4 of 5
Why do patients taking loop diuretics need to take supplemental potassium?
Correct Answer: B
Rationale: Loop diuretics block sodium and potassium reabsorption in the loop of Henle, increasing potassium loss in urine.
Question 5 of 5
When baroreceptors in the carotid and aortic bodies register increased blood pressure, this results in
Correct Answer: B
Rationale: High blood pressure inhibits vasopressin secretion to decrease water reabsorption and lower volume.